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SPV: Fix an issue caused by bool-to-uint32 conversion.

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This issue is related with the commit
103bef9d74.
This commit is contained in:
Rex Xu 2016-02-23 17:51:09 +08:00
parent 0967748fbc
commit 2725323bba
4 changed files with 199 additions and 4 deletions
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52
SPIRV/GlslangToSpv.cpp
View File

@ -98,6 +98,7 @@ protected:
spv::Id convertGlslangToSpvType(const glslang::TType& type, glslang::TLayoutPacking, const glslang::TQualifier&);
spv::Id makeArraySizeId(const glslang::TArraySizes&, int dim);
spv::Id accessChainLoad(const glslang::TType& type);
void accessChainStore(const glslang::TType& type, spv::Id rvalue);
glslang::TLayoutPacking getExplicitLayout(const glslang::TType& type) const;
int getArrayStride(const glslang::TType& arrayType, glslang::TLayoutPacking, glslang::TLayoutMatrix);
int getMatrixStride(const glslang::TType& matrixType, glslang::TLayoutPacking, glslang::TLayoutMatrix);
@ -805,7 +806,7 @@ bool TGlslangToSpvTraverser::visitBinary(glslang::TVisit /* visit */, glslang::T
// store the result
builder.setAccessChain(lValue);
builder.accessChainStore(rValue);
accessChainStore(node->getType(), rValue);
// assignments are expressions having an rValue after they are evaluated...
builder.clearAccessChain();
@ -1904,12 +1905,55 @@ spv::Id TGlslangToSpvTraverser::accessChainLoad(const glslang::TType& type)
spv::Id loadedId = builder.accessChainLoad(TranslatePrecisionDecoration(type), nominalTypeId);
// Need to convert to abstract types when necessary
if (builder.isScalarType(nominalTypeId) && type.getBasicType() == glslang::EbtBool && nominalTypeId != builder.makeBoolType())
loadedId = builder.createBinOp(spv::OpINotEqual, builder.makeBoolType(), loadedId, builder.makeUintConstant(0));
if (type.getBasicType() == glslang::EbtBool) {
if (builder.isScalarType(nominalTypeId)) {
// Conversion for bool
spv::Id boolType = builder.makeBoolType();
if (nominalTypeId != boolType)
loadedId = builder.createBinOp(spv::OpINotEqual, boolType, loadedId, builder.makeUintConstant(0));
} else if (builder.isVectorType(nominalTypeId)) {
// Conversion for bvec
int vecSize = builder.getNumTypeComponents(nominalTypeId);
spv::Id bvecType = builder.makeVectorType(builder.makeBoolType(), vecSize);
if (nominalTypeId != bvecType)
loadedId = builder.createBinOp(spv::OpINotEqual, bvecType, loadedId, makeSmearedConstant(builder.makeUintConstant(0), vecSize));
}
}
return loadedId;
}
// Wrap the builder's accessChainStore to:
// - do conversion of concrete to abstract type
void TGlslangToSpvTraverser::accessChainStore(const glslang::TType& type, spv::Id rvalue)
{
// Need to convert to abstract types when necessary
if (type.getBasicType() == glslang::EbtBool) {
spv::Id nominalTypeId = builder.accessChainGetInferredType();
if (builder.isScalarType(nominalTypeId)) {
// Conversion for bool
spv::Id boolType = builder.makeBoolType();
if (nominalTypeId != boolType) {
spv::Id zero = builder.makeUintConstant(0);
spv::Id one = builder.makeUintConstant(1);
rvalue = builder.createTriOp(spv::OpSelect, nominalTypeId, rvalue, one, zero);
}
} else if (builder.isVectorType(nominalTypeId)) {
// Conversion for bvec
int vecSize = builder.getNumTypeComponents(nominalTypeId);
spv::Id bvecType = builder.makeVectorType(builder.makeBoolType(), vecSize);
if (nominalTypeId != bvecType) {
spv::Id zero = makeSmearedConstant(builder.makeUintConstant(0), vecSize);
spv::Id one = makeSmearedConstant(builder.makeUintConstant(1), vecSize);
rvalue = builder.createTriOp(spv::OpSelect, nominalTypeId, rvalue, one, zero);
}
}
}
builder.accessChainStore(rvalue);
}
// Decide whether or not this type should be
// decorated with offsets and strides, and if so
// whether std140 or std430 rules should be applied.
@ -2470,7 +2514,7 @@ spv::Id TGlslangToSpvTraverser::handleUserFunctionCall(const glslang::TIntermAgg
if (qualifiers[a] == glslang::EvqOut || qualifiers[a] == glslang::EvqInOut) {
spv::Id copy = builder.createLoad(spvArgs[a]);
builder.setAccessChain(lValues[lValueCount]);
builder.accessChainStore(copy);
accessChainStore(glslangArgs[a]->getAsTyped()->getType(), copy);
}
++lValueCount;
}

124
Test/baseResults/spv.boolInBlock.frag.out Normal file
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@ -0,0 +1,124 @@
spv.boolInBlock.frag
Warning, version 450 is not yet complete; most version-specific features are present, but some are missing.
Linked fragment stage:
// Module Version 10000
// Generated by (magic number): 80001
// Id's are bound by 72
Capability Shader
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Fragment 4 "main"
ExecutionMode 4 OriginUpperLeft
Source GLSL 450
Name 4 "main"
Name 14 "foo(vb4;vb2;"
Name 12 "paramb4"
Name 13 "paramb2"
Name 17 "b1"
Name 24 "Buffer"
MemberName 24(Buffer) 0 "b2"
Name 26 ""
Name 39 "Uniform"
MemberName 39(Uniform) 0 "b4"
Name 41 ""
Name 62 "param"
Name 67 "param"
MemberDecorate 24(Buffer) 0 Offset 0
Decorate 24(Buffer) BufferBlock
Decorate 26 DescriptorSet 0
Decorate 26 Binding 1
MemberDecorate 39(Uniform) 0 Offset 0
Decorate 39(Uniform) Block
Decorate 41 DescriptorSet 0
Decorate 41 Binding 0
2: TypeVoid
3: TypeFunction 2
6: TypeBool
7: TypeVector 6(bool) 4
8: TypePointer Function 7(bvec4)
9: TypeVector 6(bool) 2
10: TypePointer Function 9(bvec2)
11: TypeFunction 2 8(ptr) 10(ptr)
16: TypePointer Function 6(bool)
22: TypeInt 32 0
23: TypeVector 22(int) 2
24(Buffer): TypeStruct 23(ivec2)
25: TypePointer Uniform 24(Buffer)
26: 25(ptr) Variable Uniform
27: TypeInt 32 1
28: 27(int) Constant 0
29: 6(bool) ConstantFalse
30: 9(bvec2) ConstantComposite 29 29
31: 22(int) Constant 0
32: 23(ivec2) ConstantComposite 31 31
33: 22(int) Constant 1
34: 23(ivec2) ConstantComposite 33 33
36: TypePointer Uniform 23(ivec2)
38: TypeVector 22(int) 4
39(Uniform): TypeStruct 38(ivec4)
40: TypePointer Uniform 39(Uniform)
41: 40(ptr) Variable Uniform
42: TypePointer Uniform 38(ivec4)
65: 38(ivec4) ConstantComposite 31 31 31 31
4(main): 2 Function None 3
5: Label
62(param): 8(ptr) Variable Function
67(param): 10(ptr) Variable Function
35: 23(ivec2) Select 30 34 32
37: 36(ptr) AccessChain 26 28
Store 37 35
43: 42(ptr) AccessChain 41 28
44: 38(ivec4) Load 43
45: 22(int) CompositeExtract 44 2
46: 6(bool) INotEqual 45 31
SelectionMerge 48 None
BranchConditional 46 47 48
47: Label
49: 42(ptr) AccessChain 41 28
50: 38(ivec4) Load 49
51: 22(int) CompositeExtract 50 0
52: 6(bool) INotEqual 51 31
53: 9(bvec2) CompositeConstruct 52 52
54: 23(ivec2) Select 53 34 32
55: 36(ptr) AccessChain 26 28
Store 55 54
Branch 48
48: Label
56: 36(ptr) AccessChain 26 28
57: 23(ivec2) Load 56
58: 22(int) CompositeExtract 57 0
59: 6(bool) INotEqual 58 31
SelectionMerge 61 None
BranchConditional 59 60 61
60: Label
63: 42(ptr) AccessChain 41 28
64: 38(ivec4) Load 63
66: 7(bvec4) INotEqual 64 65
Store 62(param) 66
68: 2 FunctionCall 14(foo(vb4;vb2;) 62(param) 67(param)
69: 9(bvec2) Load 67(param)
70: 23(ivec2) Select 69 34 32
71: 36(ptr) AccessChain 26 28
Store 71 70
Branch 61
61: Label
Return
FunctionEnd
14(foo(vb4;vb2;): 2 Function None 11
12(paramb4): 8(ptr) FunctionParameter
13(paramb2): 10(ptr) FunctionParameter
15: Label
17(b1): 16(ptr) Variable Function
18: 7(bvec4) Load 12(paramb4)
19: 6(bool) CompositeExtract 18 2
Store 17(b1) 19
20: 6(bool) Load 17(b1)
21: 9(bvec2) CompositeConstruct 20 20
Store 13(paramb2) 21
Return
FunctionEnd

26
Test/spv.boolInBlock.frag Normal file
View File

@ -0,0 +1,26 @@
#version 450
layout(binding = 0, std140) uniform Uniform
{
bvec4 b4;
};
layout(binding = 1, std430) buffer Buffer
{
bvec2 b2;
};
void foo(bvec4 paramb4, out bvec2 paramb2)
{
bool b1 = paramb4.z;
paramb2 = bvec2(b1);
}
void main()
{
b2 = bvec2(0.0);
if (b4.z)
b2 = bvec2(b4.x);
if (b2.x)
foo(b4, b2);
}

1
Test/test-spirv-list
View File

@ -35,6 +35,7 @@ spv.always-discard.frag
spv.always-discard2.frag
spv.bitCast.frag
spv.bool.vert
spv.boolInBlock.frag
spv.branch-return.vert
spv.conditionalDiscard.frag
spv.conversion.frag